Active solid-state devices (e.g. – transistors – solid-state diode – Field effect device – Having insulated electrode
Patent
1995-10-10
1997-10-28
Ngo, Ngan V.
Active solid-state devices (e.g., transistors, solid-state diode
Field effect device
Having insulated electrode
327404, 327434, 327436, 327537, 327541, 327546, H01L 2976, H01L 2974
Patent
active
056820500
ABSTRACT:
A bidirectional current blocking switch is disclosed. The switch includes a four-terminal MOSFET in which there is no source-body short. The voltages applied to the source and drain terminals are both higher than the voltage applied to the body terminal (for an N-channel) device so that the source-body and drain-body junction of the MOSFET never become forward-biased. The switch of this invention is particularly useful for switching a cascaded set of batteries in a portable computer. Also included is a disclosure of circuitry to protect the switch against a reverse connected battery charger.
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Ngo Ngan V.
Siliconix incorporated
Steuber David E.
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